Sash-fastener



(N0 Model.)

F. M. CASE.

SA'SH FASTENER.

No. s12,251. Patented Feb. 17, 1885.

INVENTOR ATTORNEY.

WITNESSES: 7t

FRANCIS M. CASE, OF DENVER, COLORADO.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 312,251, dated February17, 1885.

Application filed SeptcmberlO, 1884. (No model.)

To (tZZ whom, it may concern:

Be it known that I, Framers M. Case, a citizen of the United States ofAmerica, residing at Denver, in the countyof Arapahoe and State ofColorado, have invented certain new and useful Improvements inSash-Fasteners, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in thatclass of sash fasteners which are designed to be attached to the top ofthe lower sash and to lock the upper. sash to the lower one, and alsolock both sashes to the windowframe at the side. In devices of this kindas heretofore constructed a separate device has been provided in orderto lock the bolts that secure the sashes in the desired position.

The object of my invention is to provide a sash-fastener of this classin which .the bolts shall be locked without the employment of a separatelocking device; and to this end and such others as the invention mayapply it C011- sists in the peculiar combinations and the constructionand arrangement of parts hereinafter more fully described, and, thenparticularly pointed out in the claims.

In the accompanying drawings, which form a part of this specification,Figure l is a plan View of my improved sashlastener detached. Fig. 2 isa plan of the same in place with the cover removed. Fig. 3 is an endview of a bushing. Figs. 4. and 5 are plan views of escutcheons. Figs. 6and 7 are side views of the locking-bolts. Fig. 8 is a side view of thebell-crank. Fig. 9 shows a plan of a modification with thecovering-plate removed. Fig. 10 represents a sectional side view of partof the fastener with a different form of operatingknob; and Fig. 11shows a portion of the covering-plate with a different form of slot fromthat shown in Fig. 2.

Referring now to the details of the drawings, A represents the case,which is of rectangular or any suitable form, and constructed to beattached to the top bar, B, of the lower sash by two screws, one passingthrough the lug a, and the other passing through both plates of thefixture through holes I) 1). (Shown in Figs. 1 and 2.)

C is a metal cover fitting over the top of the case A, and is securedthereto by a screw, a, passing through both cover and case and formingthe axis of the bell-crank F, as will be hereinafter described. Thiscover is designed to protect the operating parts of the device, and ispreferablybronzed to give the fastener an ornamental appearance.

At D is a bolt which projects through the case A, and is designed toenter a hole in the upper sash. It is provided at its other end with aknob, d, by which it may be operated, the shank of which passes througha recess, It, having a notch, t, at each end.

E is anotherbolt, whose nose projects through the side of the case atright angles to the bolt D, and is designed to enter a hole in the sideof the window-casing.

F is a bellcrank pivoted on the screw 0, which secures the cover to thecase. At 6 e are recesses in the bolt D, and at f a projection on theinner end of the bolt E. Near the opposite end of the bolt E within thecase is formed a shoulder, g.

G is a flat spring, preferably of steel, and is set in an angle formedin the case A, as shown. One end ofthis spring bears against theshoulder 9 of the bolt E, and the other end on the inner end of the boltD, as shown in Fig. 2, which spring forces both bolts outward, as willbe readily understood.

H is a recess formed in the case A, and is designed for the passage ofthe window-cord. The casing may have any desired number of holes in thepath of the bolt E as the lower sash is raised, and the stile of theupper sash may also have a corresponding or a different number of holesin the path of the bolt D, so that the lower sash may be raised to anydesired position ,and there engage the casing and upper sash; or theupper sash may belowered to any desired point and engaged by its bolt;or the lower sash may be raised and the upper sash lowered to a certainextent and there engaged. The belt E passes under the bolt D, throughthe recess 6 therein, when in operation, and the construction is suchthat the bolt D may be in place while the lower sash is moved up tillthe bolt Efinds its hole. The holes in the casing and in the stile ofthe upper sash may 'be provided with a bushing, (shown in full lines inFig. 3, and in dotted lines in Fig. 2,) or they may be covered by theescutcheons shown in Figs. 4. and 5, which should be bronzed or nickelplated to give them an ornamental appearance.

In Figs. 3, 4, and 5 I have shown one style ofbushing and two stylesofescutcheons,but do notlimit myself to any particular style, as it isevident that others would answer the purpose equally as'well or they maybe dispensed with entirely.

In Fig. 91 have shown a modified form of my fastener. In this case around wire spring, G, is used, which operates only on bolt E, andanother spring, G (preferably a flat 011e,) presses against the side ofthe bolt D. With this arrangement of the springs I make the notches inthe slot h on the right hand side of the same, as shown inv Fig. 11, sothat the tendency of the spring G will be to force the bolt into one ofthe notches when the shank of the knob is opposite either of saidnotches.

Instead of the ball-knob shown in Fig. 6,it may be preferable to use aseinispherical knob or head, shown in Fig. 10.

The operation of the fastener shown in Fig. 2 is as follows: Supposingthe window to be closed and it is desired to have it partially open, itis only necessary to move the knob (1 along in the sloth, when the boltD will be withdrawn from its hole in the upper sash. This movement willcause the bell crank to turn on its pivot, owing to the engagement ofone of its arms with the recess in the bolt D, and as this bell-crankturns it withdraws the bolt E from its hole in the casing, owing to theengagement of the other arm ofthe bell-crank with the projections f onthe end of the bolt Y E. In order to lock the bolts to prevent thepossibility of tampering with them from the outside, it is onlynecessary to move the knob into one of the notches at each end ofthethrow of the bolt D. It will be observed that the spring G bears on theend of the bolt D, and thus, in addition to its function of pressing insaid bolt, it serves also as a friction device,

and thus retains the shank of the knob in the slot 71.. This is assistedby the curved end of the spring. The same function is served by thespring G but the latter also pushes the shank into the slot. If,however, the form shown in Figs 9 and 10 is used, it is unnecessary tomove the knob sidewise to lock the bolts, as the spring G2 will forcethe shank of the knob d into the notch at the end of the shank, and thussecurely lock the bolts in position. It will thus be seen that thesashes can be securely locked at any desired height, and that theoperation of locking is performed simultaneously with that of raising orlowering the sashes and by the same mechanism that holds the sashes inplace, thus avoiding the expense and inconvenience of an independentlocking device for securing the bolts in place.

\Vhat I claim as new is- 1. In a sash-fastener, the combination of thebolt D, having recess 0, the bolt E, having projection f, the bell crankF, one arm of which is constructed to engage with the walls of saidrecess, and the other with said projection, to operate the bolt E in onedirection, and the spring G,constructed to operate said bolt in theopposite direction, substantially as and for the purpose specified.

2. The combination, with the bolt E, having projectionf, and the boltD,ha\ ing recess e, of the bell-crank F, constructed to operate saidholts'simultaneously, said bolt D also being provided with arecess, 0,thereby permitting the uninterrupted travel of said bolts on the sameplane, and the spring G,'operating on said bolts, substantially asdescribed.

In testimony whereot'l affix m y signature, in presence of twowitnesses, this 2d day of September, 1884..

FRANCIS M. CASE. \Vit-nesses:

W. H. J. NIoHoLs, J OHN XV. W nns'rnn.

